Home / 1,551.18-2,140.69-852.58

Finding the Fourth Proportional to 1,551.18, 2,140.69 and 852.58

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Solution

The fourth proportional to 1,551.18, 2,140.69 and 852.58 is: 1,176.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.18 : 2,140.69 = 852.58 : x
  2. Step 2: Convert to fraction form
    1,551.18/2,140.69 = 852.58/x
  3. Step 3: Cross multiply
    1,551.18x = 2,140.69 × 852.58
  4. Step 4: Simplify right side
    1,551.18x = 1,825,109.48
  5. Step 5: Solve for x
    x = 1,825,109.48/1,551.18
  6. Step 6: Final answer
    x = 1,176.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.